Patent:US2123142
Brevetto: | US 2123142 |
Titolo: | Indicating and calculating system |
Data: | 05.07.1938 |
Luogo: | |
Nazione: | Stati Uniti |
Persona: | Mcmaster Archie J |
Ditta: | G M Lab Inc |
Link interni: | |
Keywords: | |
Link al brevetto: (without guarantee) | ![]() ![]() |
- DATUM: 05.07.1938
- TITEL: Indicating and calculating system
- PERSON: G M LAB INC